Jx.categorize('unit.variant', {
	
	$extend: 'Jx.lib.Unit',
	
	allowSetValue: function(operation, value){
		
		operation.value = value;
		
		return true;
		
	},
	
	valueOf: function(){
		
		return this.getValue.apply(this, arguments);
		
	},
	
	toString: function(){
		
		return String(
			
			this.getValue.apply(this, arguments)
			
		);
		
	}
	
});
